The Plan

My sister kept saying "I want to have a dog". Though my mother was against it. She likes dogs but she doesn't want to take care of it. My father loves dogs but he couldn't agree with my sister because he wants to maintain a good relationship between him and his wife, my mother. My sister asked me "Do you have any idea how to make my mother agree?". I came up with a good idea. The idea was that we give my father a dog as his birthday gift. If the dog is for my father, then my mother will have to agree. Then my father will be happy. Fortunately my father's birthday will come soon. We elaborated the plan. We will go out for dinner on my father's birthday. The plan was after my father and mother leave the house. Secretly either my sister or I will bring the dog into the house and then head to the restaurant. We will enjoy our father's birthday dinner, and we get home the dog will welcome my father and mother. I hope the plan will succeed.